Fine Swiss gold open faced minute repeating lever Circa 1965

Gold minute repeater by Patek Philippe
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A fine Swiss 18 carat gold open faced minute repeating keyless lever pocket watch, circa 1965. Nickel finished lever movement, bimetallic compensation balance, micrometer regulator, minute repeating on two gongs activated by a slide in the band. Silvered matte dial, applied baton numerals and subsidiary seconds. Plain case, stepped bezel, snap on back. Comes with an associated 18 carat gold link chain. Case, dial and movement signed.
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Diameter: 48 mm
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Signed: Patek Philippe Genève Swiss